Is 13/7 a rational number? Explain

1 answer:

8 0

The fraction 13/7 is a rational number. Both 13 and 7 are integers (whole numbers), so by definition, 13/7 is a rational number

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What is the correct answer for this problem?Explain

bearhunter [10]

To solve this you would make a triangle, Assuming you had a piece of paper.

It would look like the picture included (where ever that is) sorry for the horrible drawing with mouse.

You can then you Pythagorean Theorem to solve this

$a^{2} + b^2 =c^2$

width will be (a)

put in your variables

$a^2 + 72^2 = 90^2$
$a^2 + 5184 = 8100$

Subtract 5184 over and get
$a^2 = 2916$

square root both sides and get
a=54

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3 years ago

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Find the probability of drawing each color marble from the collection shown here. Give each answer as a fraction (in lowest term

Sergio039 [100]

Answer:

its 4 i think

Step-by-step explanation:

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3 years ago

PLS HELP

Rzqust [24]

1+1=2!!

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3 years ago

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Jason will use a 1/3 gallon pitcher to fill an empty 3/4 water jug. How much water is needed to completely fill the water jug?

elena-s [515]

Answer:

Pitcher 1/3 gallon = 4/12 gallon

Jug 3/4 = 9/12 gallon

So, it will take 2 pitchers plus 1/12 of a gallon to fill the jug.

Step-by-step explanation:

6 0

3 years ago

A/20 + 14/15 = 9/15 <br><br> Can i get some help?

KiRa [710]

Method 1:

$\dfrac{a}{20}+\dfrac{14}{15}=\dfrac{9}{15}\ \ \ \ |multiply\ both\ sides\ by\ 60\\\\60\cdot\dfrac{a}{20}+60\cdot\dfrac{14}{15}=60\cdot\dfrac{9}{15}\\\\3a+4\cdot14=4\cdot9\\\\3a+56=36\ \ \ \ |subtract\ 56\ from\ both\ sides\\\\3a=-20\ \ \ \ |divide\ both\ sides\ by\ 3\\\\\boxed{a=-\frac{20}{3}\to a=-6\frac{2}{3}}$

Method 2.

$\dfrac{a}{20}+\dfrac{14}{15}=\dfrac{9}{15}\ \ \ \ |subtract\ \dfrac{14}{15}\ form\ both\ sides\\\\\dfrac{a}{20}=-\dfrac{5}{15}\\\\\dfrac{a}{20}=-\dfrac{1}{3}\ \ \ \ |multiply\ both\ sides\ by\ 20\\\\\boxed{a=-\dfrac{20}{3}\to a=-6\frac{2}{3}}$

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4 years ago